What's Changed

Improvements

• Fail with a descriptive error when path-based rules are used on value-semantic types by @dennisdoomen in #3187
• Significantly speed up BeEquivalentTo for large unordered collections by @dennisdoomen in #3188
• Add ComparingNullCollectionsAsEmpty and ComparingNullStringsAsEmpty options to BeEquivalentTo by @dennisdoomen in #3202
• Include original index in extraneous item failure messages by @dennisdoomen in #3203

Documentation

• Reroute the docs link to Xceed by @dennisdoomen in #3183
• Fix typo in release notes by @jnyrup in #3194
• Fix typos in docs by @jnyrup in #3197

Others

• Bump flatted from 3.4.1 to 3.4.2 in the npm_and_yarn group across 1 directory by @dependabot[bot] in #3184
• Add AI assistant instruction file (agents.md) for Copilot, Claude, and JetBrains Junie by @Copilot in #3176
• Bump smol-toml from 1.6.0 to 1.6.1 in the npm_and_yarn group across 1 directory by @dependabot[bot] in #3185
• Bump the npm_and_yarn group across 1 directory with 2 updates by @dependabot[bot] in #3186
• Bump cspell from 9.7.0 to 10.0.0 by @dependabot[bot] in #3189
• Update nugets by @jnyrup in #3192
• Fixup Qodana issues by @jnyrup in #3193
• Fix Qodana argument separator by @jnyrup in #3195
• Use new Qodana linter option by @jnyrup in #3196
• Fix flaky BeLessThanOrEqualTo execution time test by @Copilot in #3200
• Bump JetBrains/qodana-action from 2025.3 to 2026.1 by @dependabot[bot] in #3201
• Use long for hashCode in ReferentialComparer to avoid overflow by @dennisdoomen in #3204

Full Changelog: 8.9.0...8.10.0